Nor’east winds pick up nationwide and become a little strong in some exposed places. A narrow but heavy band of rain slides south and eastwards over the North Island. 

NORTH ISLAND:
Rain, heavy at times, tracking across the upper North Island then easing. Rain eases in Northland in the morning, then Auckland, Waikato etc. A few light drizzle patches or showers on the eastern side south of Gisborne, otherwise dry at first but patchy rain spreads over much of the island by tonight with the lightest falls/lowest amounts the further south you are. Wellington looks mainly dry. Rain in the east may become heavy overnight. Winds blustery at times from the NE, easing after the front to light/calm for many.
Highs: 11 to 18

SOUTH ISLAND:
East to NE winds picking up with clouds increasing from the north. Rain developing around Nelson and Marlborough with some patchy falls down the West Coast later in the day or by night. Mainly dry in the east and south but patchy rain develops overnight in Canterbury and maybe coastal Otago (or drizzle). Winds lightest in Southland and driest weather too. Winds ease later today or overnight. Warmest on the West Coast, coldest around Queenstown.
Highs: 7 to 17

– WeatherWatch.co.nz